Sozopol climate is warm and temperate, with a lot of rainfall even in the driest months. The wettest months are May to June.
Spring: March – May: Spring season starts from March and remains till May with April’s maximum temperature ranges around 6 degrees Celsius. This is basically low season in Sozopol.
Summer: June – August: Summer in Sozopol is between June to August with average temperature in August at 28 degrees Celsius. This is the peak season for tourists in Sozopol.
Autumn: September – November: Autumn in Sozopol is between the months of September to November with October’s maximum temperature ranges around 19 degrees Celsius.
Winter: December – February: Winters in Sozopol is between December to February with January as the coldest month, with maximum temperatures reaching 6 degrees Celsius. This time period is off-season for tourists in Sozopol.
So, the best time to visit is between mid July to mid September.